122164615501 has 16 divisors (see below), whose sum is σ = 130829094000. Its totient is φ = 113669111808.

The previous prime is 122164615493. The next prime is 122164615537. The reversal of 122164615501 is 105516461221.

It can be written as a sum of positive squares in 8 ways, for example, as 46677602500 + 75487013001 = 216050^2 + 274749^2 .

It is a cyclic number.

It is not a de Polignac number, because 122164615501 - 2³ = 122164615493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122164612501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758581 + ... + 905413.

It is an arithmetic number, because the mean of its divisors is an integer number (8176818375).

Almost surely, 2^122164615501 is an apocalyptic number.

It is an amenable number.

122164615501 is a deficient number, since it is larger than the sum of its proper divisors (8664478499).

122164615501 is a wasteful number, since it uses less digits than its factorization.

122164615501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147408.

The product of its (nonzero) digits is 14400, while the sum is 34.

The spelling of 122164615501 in words is "one hundred twenty-two billion, one hundred sixty-four million, six hundred fifteen thousand, five hundred one".